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PHOENIX -- The heat is making a comeback in the Valley of the Sun as drier air moves in from the west and monsoon moisture retreats to the east.

At 3:54 p.m. Thursday, Sky Harbor reached a high of 100. The last time Phoenix was in triple digit territory was on Sept.6, when Sky Harbor tied a record high temperature for the day of 111.

Without any rain in the forecast for the next seven days, temperatures will gradually climb. It appears Arizona could be finished with the monsoon, but we could also just be taking a break. The season officially ends on Sept. 30.

Thursday night, look for clear skies and a low of 77 in Phoenix. Friday, expect sunny skies and a high of 100. On Saturday, we’re forecasting a high of 101 and a high of 104 on Sunday. Sunshine will be plentiful. Humidity will be higher during the mornings and evenings, but dropping off during the afternoons.

Isolated storms will continue across northwest Arizona into Saturday as an area of low pressure weakens and moves out of Nevada. Meanwhile, afternoon showers and storms will develop from daytime heating across eastern and northern Arizona through Saturday. A much drier air mass will envelop all of Arizona starting Sunday.